Full-Stack Engineer Bilin GmbH
Led and developed Wondercall AI, an AI-agent platform handling customer conversations across calls, WhatsApp, Telegram, and email. Built a production RAG pipeline with OCR ingestion, hybrid retrieval, reranking, source citations, refusal behavior, and fixed evaluation test sets. Owned PostgreSQL architecture with more than 180 models, multi-tenant isolation, search indexing, and AI budget controls; also developed TypeScript APIs on Cloudflare Workers and contributed extensively to the Next.js application.
Migrated production infrastructure from Coolify to Kubernetes on OVH Cloud using Pulumi, node autoscaling, and gVisor agent sandboxes, with no downtime. Improved CI through self-hosted GitHub Actions runners and created an AI pull-request review pipeline. Solely built the Aurion Solana checkout SDK and led engineering for CryptoGirls, including architecture, product decisions, team hiring, Laravel, Svelte, video streaming, settlement ledgers, webhook delivery, and payment-provider failover.